Lock.



H. G. VOIGHT.

LOCK.

APPLICATION FILED ocr. 5. 1915.

Patented Apr. 4,1916.

/ ATTORNEY H. G. VOIGHT.

- LOCK.

APPLICATION FILED OCT. 5. 1915. 1,177,745. Patented Apr. 4, 1916.

. 2 SHEETS-SHEET 2.

lfl//T/VESSES:

v in Fig.

Fig G is a section on' linel unirti) (mielef#w www. 1.,

HENRY- G. voicriifii,` on NEW 'BRI-ram, QQNNEoricrifr, iissieiion rro SARGENT. & oo ivi- PANY, or New Haven, cNinicT-IQUT. eCoitebiggfrioiv.orcoivivnoriour.

l LOCK:

Speeiicatioii yof Letters, Patent.

repented Apr. 4., i916.

Application led Octoberv 5,1915. Serial No. 54,206.

To allwhom t may concern:

Be it known that I, HENRY Gr. VVoieri'i, lof

NeivBritain, county of Hartford, andA State of Connecticut, have invented certain new provide a very secure type'o'ftumbler mech:A has a very smooth and Well` anism which balanced action. v

v Another object of the inventionk is to provide an improved tumbler` spacer of such formthat the several spacers not only space the tumblers apart so that they will register properly bear on the tumblers in such a Way as tocause friction, and thereby act as a yielding buffer on the return movement ofthe tuinblers,fso that the lock. is rendered almost l noiseless in operation.

To these and other ends, the invention consists in the novel features Vandcombmations of parts to be hereinafter described and! claimed.

is a sideelevationofi a mortise lock embodying my. improvements, with the lower. portion of the case omitted; Fig. 2 isa fragmentary elevation with the, cap plate. re-

lmovedi the bolt being in the retracted position; Fig. 3 is a view similar to Fig. 2, showing. the bolt partly protractedu by trhf. key; Fig. et is a section on linee- 4; of.V Fig. 2; Fig. 5 is a section on line 57,-5 ofglig. 2.; GTS; Off Fg.- 2; Fig. 7 is a reverse view of 1 F'g. S is a. fragmentaryv elevation,

main tumblers-renioved fromin front ofi the bolt; Fig. 9 shows the bolt with a single. tumbler overlying the same, the other. tumblers of the same group and; the tumbler spacers being of one of the tumbler spacers gV Fig. 1l is a detailof one tumbler and the two; tumbler. spacers on` opposite sides thereof; andffFig. 12 is a detail of the key'.

*The mainv portion of of usual construction the ordinary. face plate or. front 2l., through with the wards in the'key, but also 'l the parts shown,

omitted; Fig. 10,. is a detail the lock asef2Q is. being, Vproyided; with' which the dead bolt 22 is adapted tov extend. In the particular form shown, this bolt 22 is operable by a keyinserted through a keyhole, 23. in theA capl or cover plate 24. This cap or cover plate2i is, generally speaking, of the usualJ type, but its detail lconstruction is somewhat out of the ordinary, because` at one corner itis provided With'a cutaway portionk 25 which fits around a plate 26 that Vserves to hold the tumbler mechanism of the bolt 22 in the' properly assembled condition. providedfwith anropening .27 fitting around a disk 28;., .which also serves as a ineansfor clamping. the tumbler mechanism in position, This, particular construction facilitates the assembling ofithe4 lock for, after the 'de/ad, bolt and its tumblers have been assembled inthe oase, as hereinafter described, they can, be permanently maintained in the assembledy position by the members 26 andi 28, While other bolt mecha-V nism is assembled in another-portion of the.

case (in this instance, .the lower part of the case), The cap 24 can then be ,applied by screws4 in the usual Vmanner, Without V,the

necessity' of observing any particular careV in applying it, at least soY far as the bolt 22 In the accompanying` drawings, Figure l Wall of the case. Atl .itsA rear portion, it is provided with talons. Slvfadapted to be engaged by the bit 32 Of; the key 33, when the rlhe cap 24 is also latter is"in,sertedi into the keyhole 23. VIn the i particular. form' shown, the talons 31 are formed onthelower part ofthe bolt shank,. and at. the, upper edgevofsaid shank notches.

3e, 35 are, provided to coperate with a stump or fence 36; 0n5 a rackingk lever 37,

Survie 35;) with, which itis alined. Fig.8 shoivs pivoted tothe case at 38, and acted on by av 39. ,The spring 39 tendst'o engageY the stump or fence with the notch (34 orthe. fence, 36: engaged in the notch 35,Y andV i thereby locking. the bolt inv its protracted 3 45, it locks the bolt in its retracted position.V

'l2-he racking lever-37 is operated positively by.k means. fn the. key through a lifter 40,

in.v close proximity. to the keyholel -As' the position, When' the fence, engages the notch key. is Aturned inthe keyhole, the arni42j is Vtion one engaged and moved upward so that a small projection 43 thereon will engage a coperating projection 44 on the racking lever 37, and thereby raise the stump or fence 36 out of the bolt notch in which it is engaged, thereby releasing the bolt for pro tractive or retractive movement, as the case may be. The lower arm 45 of the lifter 40 is adapted to engage a stop pin 46 on the case. In the normal position, the lifter 40 hangs in the position shown in Fig. 8, in which it is arrested by the pin 46. A curved guard 47 cast on the back of the case is disposed between the keyhole and the lower arm 45 of the lifter 40 to prevent tampering with the latter, by means of the wire or the like inserted in the keyhole. The racking lever 37 is in the nature of a bolt locking tumbler, and therefore it will be correct to refer to the member 45 as a tum- 1oler lifter.

It will be observed that the key releases the bolt by acting on the rackinglever o1 locking tumbler 37, through the intermediary of the tumbler lifter 40whereupon it shifts the bolt by engagement with the talons 3l. The bolt can only be actuated, therefore, by a key bitted to actuate the tumbler lifter 40 in an operative fashion Vwith respect to the racking lever. The security of the lock is, by providing additional tumbler mechanism, preferably comprising a plurality of pivoted tumblers that cooperate with the racking lever and have to be moved by the key into a certain definite position before the racking lever can be released from locking engagement with the bolt by means of other words, these additional tumblers serve primarily as locking tumblers for the locking tumbler or racking piece 37, rather than as tumblers for directly locking the bolt. In Fig. 9, I have shown one of these tumbler-locking tumblers at 48. In the particular form shown, this tumbler 48 is pivoted to the case on a post 49, and provided with a spring 50 reacting against the Vlug 30. At its rear end portion, it is provided with a sweep 5l adapted to be engaged by the kej, and at its upper portion it is provided with a cut-away portion 52 entering the same from one edgeand adapted to slide over the racking piece or stump 36 in what is generallyra forward and rearward direction as said tumbler 48 is actuated by the key. The cut-away portion 52 extends into the tumbler 48 from the forward edge of the latter, and at the upper part of said cut-away poror more notches 53 are provided, the construction being such that the racking piece 36 cannot be lifted out of locking engagement with the bolt except when the notch 53 is brought into alinement with said racking piece. This is done by proper bit-v ting of the key, as `will be apparent. In the however, considerablyl increased the key. f In particular formy shown, a plurality of additional tumblers 54, 55 and 56 generally simi lar to the tumbler 48 are mounted on the same pivot 49. These additional tumblers have cut-away portionsand notches corresponding to the cut-away portion 52 and notch 53, but Von different tumblers the notches are di'erently located, the key being the adjacent tumblers at opposite faces slide j over the same in being swung to and from the bolt-releasing position. Each spacer 57 is provided at the lower portion with a perforation 58 fitting over the tumbler post 49, and at its forward edge it is provided with a notch 59 engaging the lug 30. As the.r

spacer is slipped over the tumbler post, the forward portion of such spacer straddles the lug 30, so that the spacer is thereby rigidly supported. At the tail portion, which is located near the sweep Yportions of the adjacent tumblers, the spacer is provided with a kerf 60, dividing said tail into two parts which are bent laterally in opposite direc-l 'Y tions, as shown more particularly in Fig. l1. One of these bent tail parts is indicated at 6l. andthe other at 62, and it will. be observed that at the crotch of the kerf a small perforation 63 is provided which serves to hold a certain amount of oil or other lubricant, so that the tumbler movement can be made as easy and noiseless as possible. Fig. 11 illustrates one of thek tumblers, for example the tumbler 55, with spacers 57 at opposite sides thereof, the tumbler being in the raised position. The tongue 61 of one spacer, and the tongue 62 of the other spacer` project toward each other, beneath the lower edge of the tumbler, and owing to the spring of the metal they serve to yieldinglv check the tumbler as the latter moves back to its i initial position after being released by the key. The spacers,

therefore, act in the nature of yielding buffers which cushion the f tumblers and cause them'to be returned noiselessly. This is a feature of considerable advantage, because many hotel locks are seriously objectionable on account of the considerable noise incident and withdrawal of the bolts.

the present invention itv will not be described in further detail.

The disk 28 previously described is placed' to the shooting A shut-out device 64 is pivoted on the post 49 over theY in position on top of the post 49 when the tumbler` mechanism has been completely assembled, and is secured on said post in tumbler clamping position, by means such as a screw 66. The tumbler-holding y plate Y 26, previously described, extends across the rear portions of the tumblers, and is held in place by means such as screws 67, 68, which enter suitable sockets cast on the. case wall. It will be understood that the plate 26 is supported inpart on the upstanding wall or rimfof the case, and in part on thev tumbler mechanism. By providing a tumblenholding part or parts which are disposed within cut-away portions of the cap, the space in. the lock case is economized to the fullest eX- tent, because it is unnecessary to interpose a separate tumbler-holding member between the cap plate and the tumbler mechanism. In other words, the use of a tumbler holder which is accommodated in a cut-away portion of the cap does not necessitate any increase in the depth of the case, as will be obvious.

Various changes may be made in the detail of the construction without departing from the scope of the invention as defined in the claims.

YVhat I claim is l. In a lock, the combination of a deadbolt, a locking tumbler therefor, a tumbler for locking said locking tumbler in position, a key having a bit to engage said lastnamed tumbler and actuate the same to release said first tumbler, and means interposed between the hey bit and said first tumbler for positively moving said tumbler out of locking engagement with the bolt by means of said key; substantially as described. y

2. In a lock, the combination of a dead bolt, a loclring'tumbler therefor, a plurality of tumblers' for locking said locking tumbler in position, a key having a bit to engage said last-named tumblers and operate the same, and means other than the bolt for moving said first-named tumbler out of locking engagement with the bolt when said tumbler has been released; substantially as described.

8. In a lock, the combination of a dead bolt, a pivoted racking piece or locking tumbler for locking the bolt in protracted or retracted position, a tumbler for locking said racking piece in bolt-locking position, a key for actuating said second tumbler directly, and a tumbler lifter actuated by the key to shift the firstv tumbler when it has been released by the second tumbler; sub-v stantially as described. Y

4. In a lock, the combination of a deadV bolt having a notch, a tumbler having a stump or fence to engage said notch, a tumbler for locking said first tumbler in position having a part to block or release-said stump `or fence, and a leyjto actuate said tumblers and shift the bolt; substantially as described.

In a mortise lock` the combination of a case, bolt mechanism therein, a plate superposed on said bolt mechanism for clamping the. same in position, a screw for securing said clamping plate to the case, and a cap plate for the case having a cut out portion fitting around said clamping plate in the plane of the latter; substantially asV described. Y

6. In a lock, the combination of a dead bolt having a notch, a pivoted racking piece having a stump or fence to engage said notch, a lifter for actuating said racking piece, a key for operating said lifter, and a locking tumbler for said racking piece adapted for actuation by said key and coperating with said stump or fence; substantially as described.

7. In a lock, the combination of a deadbolt having a notch, a pivoted racking piece having a stump or fence to engage said notch, a pivoted locking tumbler for said racking piece having a cut-away portion at its forward edge in which said stump or fencel operates, and a notch extendingV upwardly from said cut-away portion, said racking piece locked against movement to release the bolt except when said stump or fence is in registry with the notch in said locking tumbler; substantially as described.

8. In a lock, the combination of a deadbolt, a tumbler for saidbolt, Aand a fixed member alongside said tumbler having a laterally projecting part passing underneath the tumbler for Vcushioning the return movement thereof: substantially as described. i

9. In a lock, the combination of a deadbolt. two tumblers for said bolt, and a rela tively fixed spacing plate interposed between said tumblers Vand having a laterallyv projecting portion constructed to act as a yielding buffer for both tumblers; substantially as: described. v

10. In a. lock, the combination'of a deadbolt, two tumblers for said bolt, and a mem-r ber interposed between said tumblers and having laterally projecting resilient parts located beneath both of said tumblers .to cushion the return movement thereof; substantially as described. v

llyIn a lock, the combination of a dead bolt, a plurality of pivoted tumblers associ ated therewith, a pivot for said tumblers, a pluralitv of spacers enga ging the tumbler pivot, said spacers provided with notches, and a lug on the case engaged by said notches so as to prevent turning movementV of the spacers; substantially as described.

12. A tumbler spacer laterally projecting buffer portion; substantially as described,V

iio

having 'a resilient iso 13. A tumbler spacer comprisinf a thin metalv plate having a buii'er portion at one extremity' thereof; substantially as described.

14. A tumbler spacer having divergent bnier portions adapted to engage tumblers on opposite sides respectively of the spacer; substantially as described.

15. A tumbler spacer having a lrerf, the

portions on opposite sides of the kerf being bent laterally in opposite directions; substantially as described.

Copies of this patent may be obtained for five cents each, by addressing the Washington, D. C.

16. In a mortise lock, the combination of u case, a bolt therein, tumbler mechanism for said bolt, a clamping member for holding said tumbler mechanism in assembled position, superposed on said tumbler mechanism,.2`1nd a cover or cap plate having a cut-away portion to'receive said clamping member in the plane thereof; substantially as described. i

In Witness whereof, I have hereunto set my hand on the 1st day of October, 1915.

HENRY G. VOIGHT.

Commissioner of Patents, 

